Research Article
Optimal Extraction of Gallic Acid from Suaeda glauca Bge. Leaves and Enhanced Efficiency by Ionic Liquids
Table 3
Results of extraction of gallic acid by different solvents.
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
[Emim]Cl is 1-ethyl-3-methylimidazolium chloride; [Bmim]Cl is 1-butyl-3-methylimidazolium chloride; [Hmim]Cl is 1-hexyl-3-methylimidazolium chloride; [Omim]Cl is 1-octyl-3-methylimidazolium chloride; their concentrations were all 0.5 mol·L−1 in extraction process. UAE represents ultrasound-assisted extraction; MAE represents microwave-assisted extraction; HRE is hot reflux extraction. Extraction conditions involved extraction temperature, liquid-solid ratio, and extraction time. |